Problems with liquefied gas pumps
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Our low-temperature cryogenic LPG pumps are used only once every few days. What precautions should be taken when starting the pump again? Were the inlet and outlet valves fully closed after the last pump shutdown? What will be the consequences if everything is turned off?
When starting the pump, it is necessary to vent air; after stopping the pump, the inlet valve should be closed. If both the inlet and outlet valves are closed and high temperatures occur, the pressure of the liquefied gas can rise sharply due to its properties, which can lead to explosions. However, if the outlet valve is open and there is a safety valve on the outlet pipeline, an explosion will not occur.
Reply 1# lovestory: After stopping the pump, close all inlet and outlet valves, and relieve pressure from the pump. Ventilation should be performed before starting the pump.
Close the inlet and outlet valves completely to relieve pressure from the pump. That’s how we are.